Hot rolled Reinforcing Steel rebar 6-12m
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 17497 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Standard:
AISI,EN
Technique:
Hot Rolled
Shape:
U Channel
Surface Treatment:
Dry
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400
Certification:
ISO
Thickness:
6-40mm
Length:
6M/12M
Net Weight:
1-2.5MT
Rebar has ridges that bind it mechanically to the concrete with friction, it can still be pulled out of the concrete
under high stresses, an occurrence that often precedes a larger-scale collapse of the structure. To prevent such
a failure, rebar is either deeply embedded into adjacent structural members, or bent and hooked at the ends to lock
it around the concrete and other rebars. This first approach increases the friction locking the bar into place while the
second makes use of the high compressive strength of concrete.
Product Description :
Chemical composition (%): | Steel | C | Si | Mn | P | S | Ceq | ||||
HRB335 |
0.25 |
0.80 |
1.60 |
0.045 |
0.045 | 0.52 | |||||
HRB400 | 0.54 | ||||||||||
HRB500 | 0.55 | ||||||||||
Mechanical properties | Steel | Rel/ MPa | Rm/ MPa | A/ % | Agt/ % | ||||||
≥ | |||||||||||
HRB335 | 335 | 455 | 17 |
7.5 | |||||||
HRB400 | 400 | 540 | 16 | ||||||||
HRB500 | 500 | 630 | 15 | ||||||||
Package: | Standard export packing or as customer's request | ||||||||||
Application: | Construction, building, bridge, road. ect | ||||||||||
Payment terms | 1).100% irrevocable L/C at sight. | ||||||||||
Delivery time | 15-30 days after receipt of L/C or deposit by T/T | ||||||||||
Features
1、Pure steel quality, stable chemical contents, small tolerance.
2、Constant Quality, good drawing performance.
3、High dimension accuracy degree, accuracy degree of Level C up to 80%, smooth surface, less scale, easy to be pickled.
4、Automatic bundling with 4 lines by Machine in tidy and good looks
5、Big high quality percentage, small coil percentage, and heavy coil weight for Hard Coil.
6、High sorbitizing percentage.
Packing:
In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.
FAQ:
1.Q: What's your MOQ(minimum order quantity)?
A: One full container, mixed acceptable .
2. Q: What's your packing methods?
A: Packed in bundle or bulk ..
3. Q: How can I buy CNBM products in my country?
A:Please send us an inquiry or email ,we will reply to you if there is distributor in your country
4. Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
5. Q: How long does it take to get the product if i place an order?
A:With the process of your requirements,we will pack and deliver in 3-7 days. If it is by sea shipment,it will take 15-45 days depending on different locations
- Q: How are steel rebars used in the construction of airports?
- Steel rebars are extensively used in the construction of airports to provide structural reinforcement and ensure the overall strength and stability of various concrete structures. Rebars, also known as reinforcing bars, are typically made of steel and are strategically placed within concrete elements such as beams, columns, slabs, and foundations. In airport construction, rebars are primarily used to reinforce the concrete in runways, taxiways, and aprons. Runways, being subjected to heavy loads and constant aircraft movements, require significant reinforcement to withstand the immense pressure and prevent cracking or structural failure. Steel rebars are embedded within the concrete to enhance its tensile strength, allowing it to bear these heavy loads without compromising the integrity of the runway. Similarly, taxiways and aprons, which accommodate aircraft taxiing, parking, and refueling, also rely on steel rebars for reinforcement. These areas experience continuous vehicle and equipment traffic, making them susceptible to wear and tear. Incorporating rebars in the concrete ensures that these surfaces can withstand the constant stress and weight of aircraft and vehicles, ensuring durability and longevity. In addition to runways, taxiways, and aprons, steel rebars are also used in the construction of other airport structures such as terminal buildings, control towers, hangars, and parking facilities. These structures require strong foundations and sturdy frames to support the weight of the building and withstand various environmental factors such as wind and seismic forces. Steel rebars are employed in these structures to reinforce the concrete foundations, columns, and beams, providing the necessary strength and stability. Overall, steel rebars play a crucial role in the construction of airports by enhancing the structural integrity and durability of various concrete elements. They ensure that airport facilities can withstand the heavy loads, constant traffic, and adverse weather conditions associated with air travel, ensuring the safety and efficiency of airport operations.
- Q: Are there any specific guidelines for handling and storing steel rebars?
- Yes, there are specific guidelines for handling and storing steel rebars to ensure their quality and safety. Some of the key guidelines include: 1. Proper handling: Steel rebars should be handled with care to avoid any damage or bending. They should be lifted using appropriate equipment and not dragged or thrown. 2. Storage conditions: Rebars should be stored in a clean, dry, and well-ventilated area to prevent rusting and corrosion. They should be kept off the ground and away from moisture, chemicals, and direct sunlight. 3. Stacking: Rebars should be stacked in a way that ensures stability and prevents any deformation. They should be placed on flat surfaces and stacked in layers with wooden or rubber separators to avoid direct contact between rebars. 4. Labelling: Each bundle of rebars should be properly labeled with relevant information such as size, grade, and quantity for easy identification and inventory management. 5. Inspection: Regular inspections should be conducted to check for any signs of damage, rust, or corrosion. Damaged or corroded rebars should be discarded or repaired before use. Adhering to these guidelines is crucial to maintain the quality and integrity of steel rebars, ensuring their suitability for construction purposes.
- Q: How do steel rebars contribute to the overall sustainability of a construction project?
- Steel rebars contribute to the overall sustainability of a construction project in several ways. Firstly, steel rebars are highly durable and have a long lifespan, reducing the need for frequent replacements and repairs. This not only saves resources but also minimizes waste generation. Additionally, steel rebars are 100% recyclable, meaning they can be melted down and reused without any loss in quality. By promoting the use of recycled steel, construction projects can help reduce the demand for virgin materials, conserve energy, and decrease carbon emissions. Finally, steel rebars provide structural strength and stability to buildings, ensuring their longevity and reducing the risk of collapse or damage over time.
- Q: What is the role of steel rebars in column and beam construction?
- Steel rebars play a crucial role in column and beam construction as they provide reinforcement, strength, and stability to the structure. In reinforced concrete construction, columns and beams are typically made of concrete, which is strong in compression but relatively weak in tension. This is where steel rebars come in. Rebars, also known as reinforcing bars, are long steel rods that are strategically placed within the concrete to counteract its weakness in tension. They are typically made of high-strength steel and are designed to withstand the tensile forces that occur in a structure. By adding rebars to the concrete, the resulting composite material can resist both compression and tension, making it much stronger and more durable. In column construction, steel rebars are placed vertically and tied together in a grid-like pattern. This reinforcement helps the column support the weight of the structure and resist vertical loads, such as the weight of the floors or roof above. The rebars also help to prevent the column from buckling or collapsing under these loads. Similarly, in beam construction, steel rebars are placed horizontally within the concrete beam. These rebars help the beam to resist bending and shear forces, which are common in structural elements that span across openings or support loads from above. By providing reinforcement, the rebars ensure that the beam remains stable and can safely bear the imposed loads. Overall, the role of steel rebars in column and beam construction is to enhance the strength, stability, and load-bearing capacity of the structure. They effectively improve the structural integrity of the concrete elements, allowing them to withstand the various forces and loads they will be exposed to throughout their lifespan. Without the presence of rebars, columns and beams would be much weaker and more susceptible to failure, compromising the safety and longevity of the overall structure.
- Q: What is the lifespan of a steel rebar in a concrete structure?
- The lifespan of a steel rebar in a concrete structure can vary depending on various factors. Generally, a properly designed and constructed concrete structure with steel reinforcement can have a lifespan of 50 to 100 years or more. One crucial factor influencing the lifespan is the quality of the concrete and its ability to protect the steel reinforcement from external elements. Concrete acts as a barrier, shielding the steel rebar from moisture, oxygen, and other potentially corrosive substances. However, if the concrete is of poor quality, contains excessive amounts of chloride or other aggressive chemicals, or is not properly cured, it can lead to the deterioration of the rebar and significantly reduce its lifespan. Another important factor is the exposure conditions to which the concrete structure is subjected. If the structure is located in a harsh environment with high levels of humidity, saltwater exposure, or industrial pollutants, it can accelerate the corrosion process and decrease the lifespan of the rebar. Proper maintenance and periodic inspection can also play a significant role in extending the lifespan of the steel rebar in a concrete structure. Regular inspections can help identify any signs of corrosion or deterioration early on, allowing for timely repairs or protective measures to be implemented. To enhance the lifespan of steel rebar, additional protective measures can be taken during construction, such as applying corrosion-resistant coatings or using stainless steel reinforcement. These measures can significantly extend the lifespan of the rebar and enhance the overall durability of the concrete structure. In summary, the lifespan of a steel rebar in a concrete structure can vary but can typically range from 50 to 100 years or more, provided that the concrete is of good quality, the exposure conditions are not too severe, and proper maintenance and protective measures are implemented.
- Q: What are the guidelines for proper placement of steel rebars in concrete structures?
- The proper placement of steel rebars in concrete structures is essential to ensure the structural integrity and durability of the construction. Here are some guidelines to follow for the correct placement of rebars: 1. Design Considerations: The first step is to refer to the structural drawings and specifications provided by the engineer. These documents will outline the required rebar sizes, spacing, and any specific details or arrangements needed for the project. 2. Rebar Size and Spacing: The size and spacing of rebars are determined based on the structural requirements and load-bearing capacity of the concrete structure. The diameter and spacing of the rebars should adhere to the design specifications to provide adequate reinforcement. 3. Concrete Cover: The concrete cover refers to the distance between the outer surface of the rebar and the edge of the concrete. This cover protects the rebars from corrosion and provides fire resistance. It is crucial to maintain the specified concrete cover to ensure the longevity of the rebars. 4. Lap Length: In cases where rebars need to be spliced or joined together, a lap length is specified. The lap length ensures sufficient overlap for the transfer of stress between the rebars and prevents any weak points in the structure. 5. Alignment and Positioning: Rebars should be properly aligned and positioned within the concrete formwork. They should be placed in the center of the concrete section to effectively resist tension and compression forces. The use of spacers or chairs can help maintain the desired rebar position during the pouring and setting of the concrete. 6. Clearances and Edge Distance: Adequate clearances must be maintained between rebars to allow for proper concrete flow during casting. Similarly, minimum edge distances should be maintained to prevent rebar corrosion and ensure proper concrete cover. 7. Tying and Fixing: Rebars should be securely tied and fixed at intersections to prevent displacement during concrete placement. Properly tying the rebars using wire or approved connectors helps maintain their position and ensures the structural integrity of the concrete. 8. Inspection and Quality Control: Regular inspections should be conducted during the concrete pouring process to verify that the rebars are placed correctly and according to the design specifications. Any deviations or discrepancies should be addressed promptly to avoid compromising the structural integrity of the concrete structure. By following these guidelines, construction professionals can ensure the proper placement of steel rebars in concrete structures, resulting in safe and durable constructions that can withstand the design loads and provide long-term structural stability.
- Q: How are steel rebars used in the construction of tunnels and underground passages?
- Steel rebars are used in the construction of tunnels and underground passages to reinforce the concrete structures. They are embedded within the concrete to increase its strength and prevent cracking or collapsing under the pressure exerted by the surrounding soil or water. The rebars provide structural integrity and durability, ensuring the tunnels and passages can withstand the forces and stresses they encounter.
- Q: How do steel rebars affect the overall construction cost?
- Steel rebars can significantly affect the overall construction cost. While they add to the initial expenses, their use improves the structural integrity and durability of the building. By providing strength and reinforcement to concrete structures, steel rebars reduce the risk of cracks, deformation, and collapse over time. In the long run, this can lead to savings in maintenance and repair costs, making steel rebars a cost-effective investment in construction projects.
- Q: What are the different methods of joining steel rebars?
- Some different methods of joining steel rebars include overlap splicing, mechanical couplers, welded splices, and threaded splices. These methods ensure a strong and reliable connection between the rebars, which is essential for reinforcing concrete structures.
- Q: What is the process of removing rust from steel rebars?
- The process of removing rust from steel rebars involves several steps. 1. Inspection and assessment: Start by inspecting the extent of rust damage on the steel rebars. Determine whether the rust is superficial or has deeply penetrated the rebar. Assess the overall structural integrity of the rebars. 2. Safety precautions: Before starting the rust removal process, ensure that you are wearing appropriate personal protective equipment (PPE), such as gloves, goggles, and a respirator. This is important to protect yourself from any harmful chemicals or debris generated during the process. 3. Cleaning the surface: Begin by cleaning the surface of the rusted rebars using a wire brush or a grinder with a brush attachment. This helps remove loose rust, dirt, and other debris from the surface. Ensure that the surface is thoroughly cleaned before proceeding further. 4. Chemical treatment: Apply a rust converter or rust remover solution to the rusted areas of the rebar. These solutions typically contain chemicals that react with the rust, converting it into a stable compound or dissolving it entirely. Follow the instructions provided by the manufacturer for the specific product being used. 5. Mechanical removal: If the rust has not completely dissolved or converted after chemical treatment, it might be necessary to use mechanical methods to remove the remaining rust. This can be done by sanding the surface with sandpaper or using a wire brush to scrub off the remaining rust. 6. Rinse and dry: Once the rust has been removed from the steel rebars, rinse the surface thoroughly with clean water to remove any residual chemicals or debris. Allow the rebars to dry completely before any further treatment or application of protective coatings. 7. Prevention and protection: To prevent future rusting, it is essential to apply a protective coating or paint to the steel rebars. This acts as a barrier against moisture and air, which are the primary causes of rust formation. Choose a high-quality rust-resistant primer and paint specifically designed for steel reinforcement bars. It is crucial to note that removing rust from steel rebars is a task that requires expertise and adherence to safety precautions. In some cases, severe rust damage may require professional assistance or even replacement of the affected rebars.
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Hot rolled Reinforcing Steel rebar 6-12m
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 17497 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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